I’ve just finished hacking together a simple little program to transcode my “dvorcodes” for when entering on a QWERTY keyboard. I’ve created a new project on SourceForge and I’ve uploaded the code and a pair of pre-compiled executable JARs (one for Java 5 and also a re-worked version that’s been tested on Java 1.4.2).
Tag Archives: java
Compiling JNLP projects under stock NetBeans 6.x
This is a pretty simple issue that was easy to solve but took a bit of fumbling around…
I recently checked out the new Java SwingSet3 project from it’s SVN repo, to play around with it. It’s a NetBeans project so it was simple enough to fire up NetBeans 6.0 and use it’s built-in Subversion support to check the project out from the repository directly…
My plan was very simple: check out the code with NetBeans, build it, run it (using JDK 1.6.0_10 beta for the new Nimbus look/feel too) and then hack at the code.
Essentials to make Windows almost bareable
Okay, so I hate working in Windows, but on my employer’s equipment at least, I must live with it. After having had this machine replaced twice (faulty Dell hardware) and rebuilt more times than I can remember (Windows BSODs), for a total of at least 3 system migrations this past year, I thought I’d better keep a list of what free software to install on top of Windows, and what adjustments to make, so that at least I don’t feel like I’m wearing a straight jacket. Here goes:
Setting up multiple Java VMs under Cygwin
It is useful to have different versions of the JVM installed, for a number of reasons:
- Different optimisation features from different JVM implementations
- Different language features from different JVM versions
- Java classes compiled with “Tiger” won’t run in “Mantis”…
It is also useful to be able to quickly switch between installed JREs/JDKs depending on the task at hand.
If I’m hacking in Linux, the JPackage project provides a much nicer solution to this problem, and the Linux distro’ I’m using (SUSE 10.0) uses JPackage. It’d be nice if there was an update-alternatives for Cygwin, but since there isn’t I’ve come up with this hack.
32-bit Windows and JVM virtual memory limit
On the 32-bit Windows platform, JVM programs can only ever use up to about 1.5–1.6 GiB of memory in RAM per Java VM process. Allocating a heap size greater than this amount does not work. What’s going on?
